From e8235c0215d51236c5b968de971435b7cf74dc81 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 17 Dec 2018 21:14:25 -0300
Subject: [PATCH] shader_decode: Implement I2I
---
src/video_core/shader/decode/conversion.cpp | 26 +++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/src/video_core/shader/decode/conversion.cpp b/src/video_core/shader/decode/conversion.cpp
index 82fe5e21aa..b823b61193 100644
--- a/src/video_core/shader/decode/conversion.cpp
+++ b/src/video_core/shader/decode/conversion.cpp
@@ -18,6 +18,32 @@ u32 ShaderIR::DecodeConversion(BasicBlock& bb, u32 pc) {
const auto opcode = OpCode::Decode(instr);
switch (opcode->get().GetId()) {
+ case OpCode::Id::I2I_R: {
+ UNIMPLEMENTED_IF(instr.conversion.selector);
+
+ const bool input_signed = instr.conversion.is_input_signed;
+ const bool output_signed = instr.conversion.is_output_signed;
+
+ Node value = GetRegister(instr.gpr20);
+ value = ConvertIntegerSize(value, instr.conversion.src_size, input_signed);
+
+ value = GetOperandAbsNegInteger(value, instr.conversion.abs_a, instr.conversion.negate_a,
+ input_signed);
+ if (input_signed != output_signed) {
+ value = SignedOperation(OperationCode::ICastUnsigned, output_signed, NO_PRECISE, value);
+ }
+
+ SetRegister(bb, instr.gpr0, value);
+
+ if (instr.generates_cc) {
+ const Node zero_condition =
+ SignedOperation(OperationCode::LogicalIEqual, output_signed, value, Immediate(0));
+ SetInternalFlag(bb, InternalFlag::Zero, zero_condition);
+ LOG_WARNING(HW_GPU, "I2I Condition codes implementation is incomplete.");
+ }
+
+ break;
+ }
case OpCode::Id::I2F_R:
case OpCode::Id::I2F_C: {
UNIMPLEMENTED_IF(instr.conversion.dest_size != Register::Size::Word);
--
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